Ġgantija temples monitored

External sensors and data logging equipment have been installed at the Neolithic site of Ġgantija in Gozo.

Working closely with Heritage Malta conservationists, AIS Ltd's engineers and technicians set up sensors which measure temperature, relative humidity, solar radiance and wind speeds among other parameters. The Ġgantija temples were listed as a Unesco World Heritage Site in 1980.

All the data gathered from the sensors is transmitted in real-time across a wide area networking system to Heritage Malta's Bighi Centre in Kalkara where state-of-the-art human-machine interface software displays all data graphically and in real-time.

AIS chief executive officer Mario Schembri said: "A major difficulty encountered in the project was the fact that modern equipment and ancient structures just do not mix. All equipment was, therefore, specially chosen and sited so that at first glance one can hardly notice any monitoring instruments.

"Moreover, solar panels provide the power required, thus minimising the need for unsightly cable installations."